US3623705A - Solution mixing apparatus - Google Patents

Solution mixing apparatus Download PDF

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Publication number
US3623705A
US3623705A US774448A US3623705DA US3623705A US 3623705 A US3623705 A US 3623705A US 774448 A US774448 A US 774448A US 3623705D A US3623705D A US 3623705DA US 3623705 A US3623705 A US 3623705A
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US
United States
Prior art keywords
mixing chamber
length
mixing
liquid
liquids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US774448A
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English (en)
Inventor
James Arthur Townsley
Roy Trunley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
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Publication of US3623705A publication Critical patent/US3623705A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/55—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers driven by the moving material

Definitions

  • This application describes an apparatus for the continuous mixing of liquids which comprises a cylindrical mixing chamber which contains axially supported at both ends thereof a free running paddle which has a plurality of blades the length of which is substantially the length of the mixing chamber.
  • two or more liquid inlet jets equidistantly spaced around the circumference of the mixing chamber at the same level, each jet being arranged to discharge liquid tangentically into the mixing chamber in the same rotational direction and there being a restriction-free exit aperture from the mixing chamber positioned axially at one end of the mixing chamber, the other end being closed.
  • This invention relates to an apparatus for homogeneously mixing liquids.
  • an apparatus for the continuous mixing of liquids which comprises a cylindrical mixing chamber which contains axially supported at both ends thereof a free running paddle which has a plurality of blades the length of which is substantially the length of the mixing chamber, two or more liquid inlet jets equidistantly spaced around the circumference of the mixing chamber at the same level, each jet being arranged to discharge liquid tangentically into the mixing chamber in the same rotational direction and there being a restrictionfree exit aperture from the mixing chamber positioned axially at one end of the mixing chamber, the other end being closed.
  • liquid inlet jets are so arranged that when the streams of liquid therefrom are discharged into the mixing chamber each contributes to the effect of the liquid swirling around the mixing chamber in one direction.
  • the apparatus is held with its axis vertical and with the exit aperture at the bottom of the vertical mixing chamber.
  • the size of the mixing chamber is comparatively large in relation to the size of the inlet jets and that all the inlet jets are of the same size. Also it is preferred that the inlet velocity of the liquid from all the jets is above 4 meters/second.
  • the average dwell time of the liquid in the mixing chamber is preferably not more than I second.
  • the free running paddle rotates solely due to the impact of the liquid expelled from the tangentically arranged inlet jets.
  • FIG. I is a cross-sectional plan view of the apparatus at the level of the solution inlet jets.
  • FIG. 2 is a cross-sectional side elevation through the axis of the mixing chamber taken along a line A-A of FIG. 1.
  • a cylindrical mixing chamber 1 has positioned axially therein a paddle 2 and equidistantly spaced around the chamber are four solution inlet jets 3-6.
  • FIG. 2 in the cylindrical mixing chamber 1 the blades of the paddle 2 are shown as being almost the same height as the mixing chamber 2. The position of the jets 4 and 6 is shown.
  • the paddle 2 runs on a top bearing pin 7 and is supported on a bottom bearing pin 8. Below the bearing pin 8 is the unrestricted exit aperture 9.
  • the apparatus of the present invention is of particular use in condensation methods of controlled precipitation.
  • the substance to be dispersed is dissolved in a liquid medium, this solution is rapidly mixed with a liquid in which it is highly insoluble, preferably in the presence of a protective colloid.
  • a photographic color coupler which is water insoluble but aqueous-alkali soluble is dissolved in a mixture of a water-miscible organic solvent and aqueous alkali.
  • this solution is mixed with acidified gelatin solution a fine dispersion of the color coupler in the gelatin solution is obtained.
  • acidified gelatin solution is injected into the apparatus through three of the inlet jets and the organic solvent/aqueous alkali solution of color coupler is injected through the fourth solution inlet jet.
  • a solution inlet velocity of 8 meters/second is used for the solutions being injected through all the jets then using a mixing chamber having a volume of 1.4 cc.
  • the average dwell time of the solutions in the chamber is one-tenth of a second and the throughput of the apparatus IS l0 gals/hour.
  • the color coupler was not as finely dispersed throughout the gelatin solution as when it was present.
  • An apparatus for the continuous mixing of liquids which comprises a vertical cylindrical mixing chamber having top and bottom ends and which contains axially supported at both ends thereof a free running paddle which has a plurality of blades the length of which is substantially the length of the mixing chamber, two or more liquid inlet jets equidistantly spaced around the circumference of the mixing chamber at the same level, each met being arranged to discharge liquid tangentially into the mixing chamber in the same rotational direction, means for supplying at least two different liquids to at least two of the liquid inlet jets and there being an exit aperture from the mixing chamber positioned axially in the bottom end of the mixing chamber, the top end being closed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
US774448A 1967-11-09 1968-11-08 Solution mixing apparatus Expired - Lifetime US3623705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51121/67A GB1193350A (en) 1967-11-09 1967-11-09 Liquid Mixing Apparatus

Publications (1)

Publication Number Publication Date
US3623705A true US3623705A (en) 1971-11-30

Family

ID=10458741

Family Applications (1)

Application Number Title Priority Date Filing Date
US774448A Expired - Lifetime US3623705A (en) 1967-11-09 1968-11-08 Solution mixing apparatus

Country Status (6)

Country Link
US (1) US3623705A (de)
BE (1) BE723655A (de)
CH (1) CH476512A (de)
DE (1) DE1807923A1 (de)
FR (1) FR1590922A (de)
GB (1) GB1193350A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137048A (en) * 1977-07-18 1979-01-30 Steinman Gerald H Insulating foam producing and delivering apparatus, and foam gun therefor
WO1989007929A1 (en) * 1988-03-03 1989-09-08 Micro-Pak, Inc. Method and apparatus for producing lipid vesicles
US5496110A (en) * 1994-04-04 1996-03-05 Geier; James W. Appparatus for mixing and extracting samples
US5743640A (en) * 1996-02-06 1998-04-28 Crossley; Jimmy L. Ice cream twisting apparatus
US5964527A (en) * 1997-03-19 1999-10-12 Decnop; Coen Hendrik Mixing device
US6309096B1 (en) * 2000-04-04 2001-10-30 Chen-Liang Chang Mixing valve structure for destroying pressure difference between liquids
WO2017122002A1 (en) * 2016-01-11 2017-07-20 Belart Holding & Trade Gmbh Fluid mixer device and method
CN109966950A (zh) * 2017-12-14 2019-07-05 欧司朗光电半导体有限公司 用于扬析悬浮液的设备和用于运行设备的方法
CN112110876A (zh) * 2020-09-26 2020-12-22 安徽金禾实业股份有限公司 一种安赛蜜生产中连续磺化环合的方法
CN114392711A (zh) * 2021-12-27 2022-04-26 北京化工大学 一种流体驱动式旋转填充床及其应用

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230253A (en) * 1990-02-22 1993-07-27 Beckman Instruments, Inc. Fluid mixing device
CN112189404B (zh) * 2020-09-21 2022-04-12 周宏太 一种用于农业生产种植的种子拌种装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US944679A (en) * 1908-11-02 1909-12-28 James J Lawler Toilet-brush, &c.
US1683500A (en) * 1927-04-13 1928-09-04 Thordarson William Emulsifier
US1842877A (en) * 1929-08-30 1932-01-26 Lechler Paul Fa Apparatus for the preparation of emulsions
US2857144A (en) * 1956-05-15 1958-10-21 Mobay Chemical Corp Mixing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US944679A (en) * 1908-11-02 1909-12-28 James J Lawler Toilet-brush, &c.
US1683500A (en) * 1927-04-13 1928-09-04 Thordarson William Emulsifier
US1842877A (en) * 1929-08-30 1932-01-26 Lechler Paul Fa Apparatus for the preparation of emulsions
US2857144A (en) * 1956-05-15 1958-10-21 Mobay Chemical Corp Mixing device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137048A (en) * 1977-07-18 1979-01-30 Steinman Gerald H Insulating foam producing and delivering apparatus, and foam gun therefor
WO1989007929A1 (en) * 1988-03-03 1989-09-08 Micro-Pak, Inc. Method and apparatus for producing lipid vesicles
US4895452A (en) * 1988-03-03 1990-01-23 Micro-Pak, Inc. Method and apparatus for producing lipid vesicles
US5496110A (en) * 1994-04-04 1996-03-05 Geier; James W. Appparatus for mixing and extracting samples
US5743640A (en) * 1996-02-06 1998-04-28 Crossley; Jimmy L. Ice cream twisting apparatus
US5964527A (en) * 1997-03-19 1999-10-12 Decnop; Coen Hendrik Mixing device
US6309096B1 (en) * 2000-04-04 2001-10-30 Chen-Liang Chang Mixing valve structure for destroying pressure difference between liquids
WO2017122002A1 (en) * 2016-01-11 2017-07-20 Belart Holding & Trade Gmbh Fluid mixer device and method
CN109966950A (zh) * 2017-12-14 2019-07-05 欧司朗光电半导体有限公司 用于扬析悬浮液的设备和用于运行设备的方法
CN109966950B (zh) * 2017-12-14 2021-10-08 欧司朗光电半导体有限公司 用于扬析悬浮液的设备和用于运行设备的方法
CN112110876A (zh) * 2020-09-26 2020-12-22 安徽金禾实业股份有限公司 一种安赛蜜生产中连续磺化环合的方法
CN114392711A (zh) * 2021-12-27 2022-04-26 北京化工大学 一种流体驱动式旋转填充床及其应用

Also Published As

Publication number Publication date
BE723655A (de) 1969-04-16
FR1590922A (de) 1970-04-20
GB1193350A (en) 1970-05-28
CH476512A (de) 1969-08-15
DE1807923A1 (de) 1969-06-19

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